Resignation Comes Days After Abkhazia Plunged into Political Chaos

MOSCOW—The president of Abkhazia resigned on Sunday, days after protesters stormed his office in what he called a coup attempt in the breakaway Georgian region.

Alexander Ankvab, who fled the capital after the opposition protesters seized his office and demanded his resignation, had insisted on remaining in power after the takeover late Tuesday. But on Saturday, the regional parliament declared him unable to perform his duties and...